MT Valves & Fittings product. Series 87 extension fitting (hexagon interior) with male-female threaded connection. Reinforced body made of yellow brass. Designed to join valves or other fittings. Model 87533 is manufactured in accordance with the hot stamping method and in accordance with EN 1254-4. It has union threads in accordance with ISO 228/1. Guaranteed for use in cold water, hot water and compressed air. It withstands an operating temperature of -20 a 150°C. MT’s threaded brass fittings are manufactured in accordance with the hot stamping method and in accordance with EN 1254-4. They are quick and easy to install, saving time and facilitating assembly. They have a high temperature resistance, which makes them ideal for fluid handling applications in cold water, hot water and compressed air, and are suitable for copper and plastic pipe systems (PE, PEX, PP, Pb). Available references and published specifications: • 87533015020 — measures: M-F EXTENSION FITTING BRASS-FINISH (HEXAGON INSIDE) 1/2"X 20; weight (kg): 0.05; small / large box: 10 / 300 • 87533015030 — measures: M-F EXTENSION FITTING BRASS-FINISH (HEXAGON INSIDE) 1/2" X 3; weight (kg): 0.06; small / large box: 10 / 200 • 87533015050 — measures: M-F EXTENSION FITTING BRASS-FINISH (HEXAGON INSIDE) 1/2" X 5; weight (kg): 0.1; small / large box: 5 / 130 • 87533015100 — measures: M-F EXTENSION FITTING BRASS-FINISH (HEXAGON INSIDE) 1/2" X 1; weight (kg): 0.19; small / large box: 5 / 90 • 87533020050 — measures: M-F EXTENSION FITTING BRASS-FINISH (HEXAGON INSIDE) 3/4" X 5; weight (kg): 0.13; small / large box: 5 / 90 • 87533020100 — measures: M-F EXTENSION FITTING BRASS-FINISH (HEXAGON INSIDE) 3/4"X 10; weight (kg): 0.25; small / large box: 5 / 60 Price and local availability on request. Source: https://mtspain.net/en/m-f-extension-fitting-brass-finish-hexagon-inside/